REACTIONS OF SOME DIENOPHILES WITH 3-ARYL-2-CYANOTHIOACETAMIDES - SYNTHESIS OF NEW THIOPYRAN DERIVATIVES

3-Aryl-2-cyanoacrylamides (1a-c) react with acrylonitrile, ethyl acrylate, .omega.-nitrostyrene and N-arylmaleimides to give 6-amino-4-aryl-3,5-dicyano-3,4-dihydro-2H-thiopyrans (2a-c), 6-amino-4-aryl-3-carbethoxy-5-cyano-3,4-dihydro-2H-thiopyrans (3a-c), 6-amino-4-aryl-5-cyano-3-nitro-2-phenyl-3,4-...

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Published inIndian journal of chemistry. Sect. B. Organic chemistry, including medicinal chemistry Vol. 27; no. 5; pp. 472 - 474
Main Authors ELSHARABASY, SA, HUSSAIN, SM, GAWAD, SMA, DABOUN, HA
Format Journal Article
LanguageEnglish
Published NEW DELHI Natl Inst Science Communication & Information Resources-Niscair 01.05.1988
Subjects
Chemistry
Chemistry, Organic
Physical Sciences
Science & Technology
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Summary:3-Aryl-2-cyanoacrylamides (1a-c) react with acrylonitrile, ethyl acrylate, .omega.-nitrostyrene and N-arylmaleimides to give 6-amino-4-aryl-3,5-dicyano-3,4-dihydro-2H-thiopyrans (2a-c), 6-amino-4-aryl-3-carbethoxy-5-cyano-3,4-dihydro-2H-thiopyrans (3a-c), 6-amino-4-aryl-5-cyano-3-nitro-2-phenyl-3,4-dihydro-2H-thiopyrans (4a-c) and thiopyrano[2,3-c]pyrrolidine-2,4-diones (6a-c, 7a-c), respectively.
ISSN:0376-4699
0975-0983